Specifics aren't clear, but it was described as an injury to the hip flexor, per Rapoport.

It's another big blow to a Saints secondary that will now be without its top cover man and defensive linchpin for at least a month.

Prized 2014 free agent free safety Jairus Byrd played only four games last season and hasn't seen the field this preseason. He appears headed for the reserve/PUP list to open the season, which would force him to miss the first six games.

On Tuesday, the Saints placed third-round corner P.J. Williams, for whom the team had high hopes, on season-ending IR with a torn hamstring.